@article{10_14708_wm_v9i2_2230,
     author = {L. Je\'smanowicz and S. Hartman and H. Rasiowa},
     title = {O wyk{\l}adzie {{\quotedblbase}Wst\k{e}p} do matematyki"},
     journal = {Wiadomo\'sci Matematyczne},
     pages = { 233--243},
     publisher = {mathdoc},
     volume = {9},
     number = {2},
     year = {1967},
     doi = {10.14708/wm.v9i2.2230},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/wm.v9i2.2230/}
}